Rotary engine.



E. B. TRESCHER. ROTARY ENGINE.

APPLICATION FILED APR.16, 1908. 91 9,496.

2 SEBIETSw-BHEET 1.

Patented Apr. 27,1909.

E. B. TRESCHBR.

ROTARY ENGINE.

l APPLICATION FILED APR. 16, 1908`. Apr' vEMIL B. TRESOHE R, OF BOSTON,MASSAOllUSIITlS.

ROTARY ENG-INE Specification of Letters Patent.

Patented April 27', 1909.

Application filed April 16, 1908. Serial No. 427,374.

To all whom it may concern:

Be it known that l, EMIL B. TRESCHER, a citizen of the German Empire,residing at lBoston, in the county of Suffolk and State olzMassachusetts, have invented certain new and useful Improvements inRotary Engines, of which the following is aspeciiication.

This invention relates to steam engines, and more particularly to rotaryengines, and has 'for its lobject to provide an engine o'l this typewhich will be relatively simple in arrangement and structure, and whichwill do away with the elaborate and complicated valve mechanism, packingtherein, etc.

A further ,object oi' this invention is to provide anengine of the abovedescribed character including a plurality of paddles or impact members`o'l' foldable sections arranged to lie normally in a closed position,but which are adapted to open consecutively upon admission of steam orfluid to the engine cylinder.

Other objects and advantages will be apparent from the followingdescription and it will be understood that changes in the s pecii icstructure shown and described may be made within the scope of the claimswithout departingfrom the spirit of the invention.

In the drawings forming a portion of this speciiication, and in whichlike numerals et' reference indicate similar parts in the several views,Figure 1 is a side elevational view et the present invention, Fig. 2 isa vertical sectional view on the line 2 2 of Fig. 1, Fig. 3 is asectional view on the line S-3 of Fig. 2, Fig. 4 is a diagrammaticiigure oi' a portion ol" the stationary cylinder showing the cam groovesand the steam impact paddles, Fig. 5 is a detail sectional view oi therevoluble wheel on the line 5 5 of Fig. 3, Fig. 6 is a horizontalsectional view on the line 6*-6 of Fig. 5.

Referring now more particularly to the drawings, there is shown a rotaryengine comprising a stationary metallic casing 10 provided at each sidewith a circular flanged portion 11, as shown. vided with a suitablesupporting base 12 bolted to the casing as shown at 13. At each side,the casing is provided with a vertically disposed arm 14 each beingprovided at its center with a bearing 15. The bearings 15 thus sup ort arevoluble shai't 16 provided with a p urality of radial spokes 17. Thespokes 17 have their outer portions directed to the inner face oi thecasing 10 and are located between planes of the iianges 11, as i eachother,

The casing 10 is proshown. rThe spokes 17 thus receive a rovolublemetallic body 1S provided with a bottom wall 19 and spaced side walls2i). The side walls 20 are thus disposed inwardly oilI the i'ianges 11ol' the casing, and the bottom wall 15) is thus arranged in spacedrelation to the casing l'or a purpose to be hereina'i'ter described.

ylhe casing 1() upon its inner l'ace is provided with cam grooves 2l and22 respectively arranged in parallel relation circumi'erentially oi' thecasing, and these grooves are in communication with angularly disposedcam grooves 23 and 24.- respectively at cach of their ends. Ii'he camgrooves 23 and 24 are also in communication with a single groove 25, asshown. .Each spoke 17 is provided with a steam impact paddle 26comprising two members 27 and 2S respectively hinged to each spoke asshown at 29. ihe members 27 and 2S are located within the metallic body1,8, and are thus arranged to close portions ol' this body when saidpaddles are in their open position. its outer end each paddle isprovided with a pin 3l), and these pins are arranged [or movement in thecam grooves just described. The casing is provided at one side with asteam. supply pipe 31, and at the other side the cylinder is providedwith an exhaust pipe 3L. lt will thus be seen that steam or similariluid may enter the inlet 51, and is discharged within the casing andrevoluble body 1S, and passes the paddles which are only partly open,and strikes other paddles in their open position until it reaches oneentirely closing the interior ol the revolving body, thus setting upmotion which revolves said body, moving the paddles around until thesteam is discharged at the pipe 32 where it may be dew livered to asuitable condenser. It will thus be seen that the construction is suchthat when the revoluble body is in motion, the pins 30 carried by themembers 27 and 2S respectively oi' the paddles will tend to close saidpaddles when they are engaged with the groove 25, and upon entrance oithe pins in the passages 23 and 24, it is obvious that the paddlemembers will partly open, and al'ter said pins have traveled or reachedthe parallel grooves 21 and 22 it will be apparent that said paddlemembers are in an open position. The stationary casing, adjacent to theinlet 31 is provided with dei'lector plates 31a arranged in spacedrelation to as shown, to permit the hinged tween the flanges of thecasing, said spokes l wings to pass therebetween in their travel.Similar deiiector plates 32a are carried by the casing adjacent to theexhaust 32.

What is claimed is:

l. In a rotary engine, the combination with a stationary cylindricalcasing having cam grooves in its inner curved face, of a power shaftlocated concentrically with the casing, a revoluble hollow body carriedby the shaft, 'for rotation therewith, said body being located withinthe inclosure of the casing, and having an open Jface directed towardthe inner curved surface ot the casing, said casing having spaced inletand exhaust ports, a pair of transversely spaced deflector platescarried by the casing adjacent to'each of the ports, said deilectorplates being located between the ports, a plurality of radial s okescarried by the hollow member therewit in, a pair of steam impact paddleshinged upon the spokes for movement to lie at times in position forpassage between the deflector plates, and at times in position to extendtransversely of the hollow body, and pins carried by the blade andengaged in the cam grooves, said grooves being arranged tor movement ofthe pins to bring the blades into parallel relation when passing thedeflector plates and to bring the blades into oppositely extendingposition when at other portions oic the casing.

2. ln a rotary engine, the combination with a stationary cylindricalcasing including circular flange portions at Aeach side, of a verticallyextending arm connected with the casing, and extending diametricallythereover at each side of the casing, a hollow shalt journaled in thearm concentrically of the casing, radial spokes connected with the powershaft, a cylindrical body connected with the spokes for rotationtherewith, said body including a bottom wall and spaced verticallyextending side walls, said side walls extending at their outerportionsbel .Witnessesz l including portions lying between the side l walls ofthe body, a pair of impact paddles pivoted to the last named portion ofeach spoke, said paddles lying within the revoluble body, and means formoving the paddles upon their pivots7 said casing having steam inlet andexhaust ports.

3. In a rotary engine, the combination circular iiange portions at eachside, of a vertically extending arm connected with the casing, andextending diametrically thereoi` at each side of the casing, a hollowshaft `iournaled in the arm concentrically of the casing, radial spokesconnected with the hollow shaft, a cylindrical body connected with thespokes for rotation therewith, said body including a bottom wall, andspaced vertically extending side walls, said side walls extending attheir outer portions between the flanges of the casing, said spokesincluding portions lying between the side walls oi' the body, a pair ofimpact paddles pivoted to the last named portion of each spoke, saidpaddles lying within the revoluble body, means tor moving the paddlesupon their pivots, said casing having cam grooves in its inner curvedface', and having also spaced inlet and exhaust ports, a pair oftransversely extending spaced deflector plates carried by the casingadjacent to and inwardly of the ports, and pins carried by the steamimpact paddles and engaged in the cam grooves, said grooves beingarranged for movement oin the pins to bring the paddles into parallelrelation at times for passage between the deilector plates, and at timesinto oppositely extending position to receive the impact of steamthereagainst.

In testimony whereof I my signature, in presence of two witnesses.

EMIL B. TRESCHER.

l EvEREr'r N. Comas,

ELMER L. BRIGGS.

with a stationary cylindrical casing including

